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Drought Legacy in Sub-Seasonal Vegetation State and Sensitivity to Climate Over the Northern Hemisphere

Wu, Minchao and Manzoni, Stefano and Vico, Giulia and Bastos, Ana and de Vries, Franciska T. and Messori, Gabriele (2022). Drought Legacy in Sub-Seasonal Vegetation State and Sensitivity to Climate Over the Northern Hemisphere. Geophysical Research Letters. 49 :15 , e2022GL098700
[Research article]

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Abstract

Droughts affect ecosystems at multiple time scales, but their sub-seasonal legacy effects on vegetation activity remain unclear. Combining the satellite-based enhanced vegetation index MODIS EVI with a novel location-specific definition of the growing season, we quantify drought impacts on sub-seasonal vegetation activity and the subsequent recovery in the Northern Hemisphere. Drought legacy effects are quantified as changes in post-drought greenness and sensitivity to climate. We find that greenness losses under severe drought are partially compensated by a similar to+5% greening within 2-6 growing-season months following the droughts, both in woody and herbaceous vegetation but at different timings. In addition, post-drought sensitivity of herbaceous vegetation to hydrological conditions increases noticeably at high latitudes compared with the local normal conditions, regardless of the choice of drought time scales. In general, the legacy effects on sensitivity are larger in herbaceous vegetation than in woody vegetation.

Authors/Creators:Wu, Minchao and Manzoni, Stefano and Vico, Giulia and Bastos, Ana and de Vries, Franciska T. and Messori, Gabriele
Title:Drought Legacy in Sub-Seasonal Vegetation State and Sensitivity to Climate Over the Northern Hemisphere
Series Name/Journal:Geophysical Research Letters
Year of publishing :2022
Volume:49
Number:15
Article number:e2022GL098700
Number of Pages:11
Publisher:AMER GEOPHYSICAL UNION
ISSN:0094-8276
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 1 Natural sciences > 105 Earth and Related Environmental Sciences > Physical Geography
(A) Swedish standard research categories 2011 > 1 Natural sciences > 106 Biological Sciences (Medical to be 3 and Agricultural to be 4) > Ecology
Keywords:drought legacy, sub-seasonal vegetation sensitivity, ecosystem resilience, growing season-based analysis
URN:NBN:urn:nbn:se:slu:epsilon-p-118727
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-118727
Additional ID:
Type of IDID
DOI10.1029/2022GL098700
Web of Science (WoS)000837063400001
ID Code:28761
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Crop Production Ecology
Deposited By: SLUpub Connector
Deposited On:02 Sep 2022 13:33
Metadata Last Modified:02 Sep 2022 13:41

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